DYNOLITE High pressure sodium floodlight with ED17 MH lamp type and source, (NPF/HPF) reactor. Die-cast aluminium ballast housing and lens frame. Lens frame mounted on floating hinge for easy lamp access. High temperature, shock-resistant tempered glass lens, gasketed to lens frame for weather-tight seal. Three piece anodized aluminium reflector with top and bottom "kick plates" for wide (NEMA 7 x 7) beam distribution. Adjustable die-cast swivel arm with serrated locking washer for horizontal aiming, arm threaded 1/2 inch NPT. Cast-in angle markings on swivel and serrated teeth provide vertical aiming, locked into position. Porcelain, 4KV pulse rated, grip-type medium based socket prevents lamp loosening. 120 VAC normal power factor reactor ballast, mounted to ribbed die-cast housing. Standard finish is bronze Duraplex IITMâ„¢ electrostatic powder finish.